X-energy · 1 month ago
Engineer V/VI, Valves & In-line devices Specialist
Rockville, MD
Full-time
Onsite
Senior Level, Lead/Staff
$131K/yr - $218K/yr
15+ years expX-energy LLC is a company focused on mechanical process and power generation systems. They are seeking an Engineer V/VI, Valves & In-line devices Specialist who will guide the specification, selection, and design of valves, ensuring compliance with technical specifications and industry standards while providing expert advice to engineering teams.
Clean EnergyCleanTechEnergyNuclearRenewable Energy
Responsibilities
Lead the execution of the core tasks and responsibilities, listed in the Job Profile Task/Responsibilities section of this document, without close supervision and extensive latitude for independent judgment
Develop and manage implementation of engineering changes in accordance with approved procedures
Teach and mentor more junior team members
Stay abreast of industry and academic trends, breakthroughs, and best practices
In collaboration with engineering leadership, set technical direction at the enterprise level through developing and owning technology or discipline specific roadmaps, best practices, and/or design criteria
Provide independent reviews and acceptance reviews of engineering deliverables and data
Oversee documentation of applicable requirements, interfaces, design basis and criteria by coordinating with key stakeholders/systems engineers and identify applicable and appropriate industry codes and standards
Have a thorough understanding of the letter and intent of industry codes and standards
As needed, direct planning of analyses required to assess all aspects of the valves to ensure they can perform their intended functions and meet all technical specifications and requirements in a manner that is compliant with applicable codes and standards
Supervise performance of computations utilizing hand calculations and analytical tools for structural, thermal, hydraulic, and other scoping calculations as required to ensure valves can meet all technical requirements in a manner that is compliant with applicable codes and standards
Develop and manage implementation of engineering changes in accordance with approved procedures
Provide assistance and guidance in designing and developing mechanical systems and components within your expertise
Understand how nuclear safety relates to system specific systems and components and the work performed on a day-to-day occurrence
Select components based on applicable requirements, interfaces, design bases and criteria by coordinating with key stakeholders/systems engineers and support identification of applicable industry codes and standards
Compose and develop design documentation including, but not limited to, design basis documents, technical reports, calculations, design descriptions and drawings in accordance with applicable procedures
Author and maintain X-energy design standards and guides related to design, specification, and selection of valves
Demonstrate project management skills to effectively organize and lead external engineering partners
Develop the technical content for and support the procurement of material, equipment, and services
Oversee and/or provide technical expertise to review procured items and associated documentation for acceptance and verify compliance of procured services and material with contract specifications
Review engineering documentation for technical correctness and compliance with X-energy processes and procedures and participate in design reviews for valves within your expertise and competence
Actively support the safety culture and ensure integration of quality into all Engineering processes utilized in the performance of this role by complying with the relevant requirements of the Quality Assurance Program
Identify, document, report and manage risks related to engineering and design scope associated with this role to ensure they are visible and mitigated accordingly
Maintain professional demeanor and behavior at all times in all forms of communication
Work effectively and efficiently with multidisciplinary engineering teams
Perform other duties as assigned by manager
Qualification
Required
15 plus years of relevant experience
Bachelor's degree in mechanical engineering or related engineering discipline from an ABET accredited university required
A master's degree in engineering or related field (may include a combination of experience obtained through an academic institution, e.g., design projects, research, or design teams, as well as professional experience) may be in lieu of two years of experience
A Ph.D. in engineering or related field (may include a combination of experience obtained through an academic institution, e.g., design projects, research, or design teams, as well as professional experience) may be in lieu of three years of experience
Previous experience at X-energy exceeding performance standards may be in lieu of years of experience
Experience with mechanical process equipment design, procurement, installation, and/or operation is required
Experience must include specifying and selecting general service, control, severe service, and special application valves based on system needs while considering all potential impacts of that selection throughout the life of the component, its associated system, and interfacing plant systems
This role also involves providing expert advice and recommendation to other engineering staff for general selection of valve types based on suitability to system design and service
Knowledge of best practices for system requirements management and verification
Knowledge of Systems Engineering processes, as well as relevant aspects of nuclear power plant licensing, regulatory, quality, and safety requirements
Valve types and applications: Comprehensive understanding of different valve types (gate, globe, check, ball, butterfly, diaphragm, etc.) and their appropriate applications in various process conditions
Control valve engineering: Expert knowledge of control valve sizing, selection criteria, trim design, actuator selection, positioners, and failure modes
Severe service applications: Specialized experience with valves for high-pressure/temperature, high-velocity flow, cavitation, flashing, erosive/corrosive media, and other challenging conditions
Special application valves: Familiarity with safety relief valves, pressure reducing valves, backflow preventers, and other specialized valves
Fluid dynamics: Strong understanding of fluid behavior through valves including pressure drops, flow characteristics, noise prediction, and cavitation/flashing analysis
Materials and metallurgy: Knowledge of valve body, trim, and seat materials including their compatibility with process fluids, temperature limits, and corrosion resistance
Industry codes and standards: Mastery of relevant standards including ASME, API, MSS, AWWA, and nuclear-specific requirements like ASME Section III
Valve actuation and control: Understanding of manual, pneumatic, hydraulic, and electric actuation systems, control circuits, and instrumentation interfaces
Valve testing and qualification: Knowledge of valve testing procedures, acceptance criteria, and qualification for safety-critical applications
Fugitive emissions and sealing technology: Expertise in packing designs, emissions standards (e.g., ISO 15848), and compliance requirements
Vendor management: Experience evaluating supplier proposals and reviewing vendor documentation for compliance with equipment specifications, design codes and standards, contract requirements, maintenance provisions, operation, testing, and general industry best practices
Preferred
Experience with authoring and/or maintaining company design standards and guides related to design, specification, and selection of valves is desirable
Systems or Design Engineering experience in successful mechanical system development projects
Benefits
401K plan with an employer match
Medical/Dental /Vision Insurance
Life and Disability Insurance
Paid Time Off
Tuition Reimbursement/Professional Development policy that supports the continuing education of our employees
Company
X-energy
X-energy is a nuclear energy company that develops small modular nuclear reactors and nuclear fuels for clean energy generation.
501-1000 employees
H1B Sponsorship
X-energy has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (1)
2024 (1)
2022 (2)
2020 (1)
Funding
Current Stage
Late StageTotal Funding
$1.71BKey Investors
Jane Street CapitalPittco ManagementDepartment for Energy Security & Net Zero
2025-11-24Series D· $700M
2025-03-05Private Equity· $22.8M
2024-10-16Series C· $700M
Leadership Team
J. Clay Sell
Chief Executive Officer
Robert Taylor
Vice President, Regulatory Affairs and Licensing
Recent News
2026-01-16
MIT Technology Review
2026-01-13
Company data provided by crunchbase